Coutinho had already hit the woodwork before Mane got things rolling with the opener and Coutinho and Can made it 3-0 at halftime.

Roberto Firmino added a fourth in the second half before Mane got his second and though Daryl Janmaat grabbed a consolation, Wijnaldum scored the sixth to send them top.

Earlier, Arsenal missed the chance to go top when they were held to a 1-1 draw by Tottenham at the Emirates.

An own goal from Kevin Wimmer just before half-time put Arsenal in front but Spurs equalized through a Harry Kane penalty in the second half to remain unbeaten in the league after Moussa Dembele was fouled.

Arsenal manager Arsene Wenger said it was a disappointing to drop two points at home.

Arsenal manager Arsene Wenger. Photo: PHOTOSPORT

"We created plenty of chances in dangerous situations," he said.

"In the second half we looked more laboured, there were plenty of aspects I did not like, the desire was there but we were too nervous.

"Spurs go home happy, we go home and are not happy. We wanted to win the game, but overall it is not mathematically a disaster."

The results leave Arsenal fourth, two points behind Liverpool, one behind Chelsea and trailing Manchester City on goal difference.

Manchester United beat lowly Swansea City 3-1 to end Jose Mourinho's dismal week on a high note, with big guns Zlatan Ibrahimovic and Paul Pogba finally firing for the red devils .

Defending champions Leicester City lost their home fixture 2-1 to West Bromwich Albion.